Phonograph.



PA TfiNTED SEPT. 25, 1906.

W. W. ROSENFIELD.

PHONOGRAPH.

APPLICATION FILED NOV. 28. 1903. RENEWED FEB. 20. 1906.

I UNITED STATES PATENT OFFICE.

WILLIAM W. ROSENFIELD, OF NEW YORKJ N. Y/

PHQNOGFIIAPH.

Specification of Letters Patent.

P atented Sept. 25, 1906.

Application filed November 28, 1903. Renewed February 20, 1906. Serial110.802.062.

i To all whom it may concern:

. mechanism for phonographs; and the inven- I Be it known that I,WILLIAM W. ROSEN- FIELD, a citizen of the United States, residing in theboron h of Manhattan, city, county, and State of New York, have inventedan Improvernent'in Phonographs, of which the following is aspecification.

This invention relates to automaticreturn A full understanding of theinvention can best be iven by a detailed description of a preferreconstruction embodyin the va-. rious features thereof, and such adescription will now be given in connection with the ac" companymgdrawings, showing such a construction.

In said drawings, Figure 1 is a plan view of a phonograph provided withan automatic return mechanism embodying my invention. Fig. 2 is anelevation of the return mechanismland parts of the phonograph with thefeed shaft and theauzgiliary or return feedshaft broken awafsoast'o moreclearly show other arts. Fi .1 coking toward the left. tai view, p rtlyin section, of parts which will be hereinafter described.

Referring to the drawings, a represents the usual bed of a phonograph orsimilar machine; b, the threaded feed-shaft; b, the mandrel, which isshown as carried by the feed-shaft; b bearings for the feed-shaft andmandrel, and 2 the driving-pulley for the feed-shaft. The back bar acarries a sliding sleeved of usual construction, to the righthand end ofwhich is secured the reproducer' arm or carrier e, the free end of whichreproducer arm or carrier is supported during its reproducing movementby a rest 5. The drawin s do not show the reproducer proper, but on ythe annular sup ort for receiving the same. :The sleeve'd 'a so carriesa feedarm (1, provided with the threaded fedblock of usual constructionto engage the thread of the feed-shaft (1, so that movement iscommunicated in the usual manner from the shaft 1) through the feed-armd to the sleeve (1 and to the reproducer-arm r, causing the same to movelongitudinally of the record on the mandrel b. c is a swinging Fig; 3 isa sectiorion tine was of Fig. 4 is a dearm carrying the end bearing 1;for the man- .be of usual construction.

An auxiliary shaft f, which serves as the return feed-shaft, is mountedparallel with the feed-shaft b in bearings f f on an auxiliary bed orlate f, which rests upon and is secured to t e bed a, and on the end/ofthis shaft adjacent to the b8&Iln"' is a gear 4, meshing with a gear 3on the feed-shaft b. The shaft f is provided with a spiral groove orscrew-thread 7, and the surface of the groove is provided with teeth 8.

A bracketh is carried by the sleeve (Z, be mg secured to the sleeve bymeans of an arm screw, as shown in Fig. 3. The bracket it carries apivot pin or arbor 12, on which an e centric or cam disk k is rotatablymounted. his eccentric or cam disk is provided with a hub is, havingopposite longitudinal notches, and the periphery of the disk is formedwith two series of teeth 13 and 14, adapted to coact with the teeth ofthe return feed-shaft, with a rib 15 at one end of the series of teeth13 and at a high part of the periphery adapted to enter" the spiral groove Zof the return feed-shaft to eoact therewith to impart returnmovement to the rcprodnccr carrier and witha flat portion or space 16between the series of teeth and at a low part of the periphery.- Thedisk will thus have a portion of its periphery between the flat portion16 and the rib 15 of progressively-increasing radius and a portionbeyond the rib 15 of progressively-decreasing radius. Extending from theface of the disk I: is a emu-plate l, the outer edge of which .lies atan angle to the axis of the disk and is adapted to engage an abutmentformed. as shown, by a post 6, having a horizontal portion which passesthrough a part of the houringf and is adjustably scoured therein toprovide for zuljustment of the post longitudinally of the directioirofmovement of the disk k.

Pivotcd to the bracket 71- at 9 is a latch-arm i, having a tooth 10 forengaging the notches in the hub k, said hitch-arm being weighted orovcrbulnncud by means of a weight 11, so that its tooth l0 nornmllybears against the lmb k. Said m'm also has an end i, projcctingon theother side of the pivot from the tooth H) for engaging a cum rod or armdrel. The parts above described are or may shaft between theconvolutions of the spiral h,split and clamped to the sleeve by a set-.3; with the rib and t dis post g, extending from the left-hand supportofthebarafl r The. operation is as follows: During the reproducingoperation of the phonograph the racket 'h, carrying the cam or eccentricdisk k, moves with the sleeve d and reproducerarm or carrier e as thelatterare moved tothe right in Fig. 1 through the action of thefeedshaft 12 on the feed-nut carried .by the feedarm d. During suchmovement the eccentric disk is held In the position shown in e high partof the dis pprmost and with the flatspacelo'of the ad'acent to but outof contact with the return eed-shaftf, the disk being held in thisposition during the reproducing operation by the latch-armi the tooth 10of which lies in one of the note es in the hub it. As the res'producer-carrier approaches the end of its reproducing movement thecam-plate Z on the I disk lc'oomes mto engagement with the post 6,

and as the movement continues the disk is thereby turned to brin itsteeth 13 into engagement with the teet 8 of the return feedshaft f. Thedisk is then further turned or rotated by the rotation of the returnfeedshaft and its toothed periphery caused to progressively engage thetoothed surface of the shaft until the rib 15 is brought into posi-'tion to enter the groove 7 of the shaft. This turning movement of theeccentric'dikfoecause of its eccentric or cam form, ra ses the the tooththen rests on the smooth surface of the hub as the rotation of the diskcontinues until the rib 15 is brought into position to enter the groove7 of the return feed-shaft. The tooth 10 of the latch i'then dro s intothe other notch of the hub 7c and he ds the disk against further turningmovement, and the disk, the bracket h, sleeve 6!, reproducer-arm, I

and feed-arm are then by the continued rotation of the return feed-shaftgiven. a return movement (toward the left in Fig. 1) until the end i ofthe latch i runs under the bent end of the arm g, whereby the end i ofthe latch is ressed down and the tooth 10 withdrawn 1 om the notch inthe hub is. The eccentric disk is thereb released and resting on thereturn feed-shaft it is given a further turning movement thereby tobring successive portions of the portion of its periphery of decreasingradius into enga ement with the shaft, whereby the bracket and thereproducer-arm are gradually lowered until the rc- .g, which isadjustable longitudinally in a producer is returned to operativeposition the feed-screw b, and the parts are thus re turned to positionforanother reproducing o erat1on. The teeth 14 on the latter part or theortlon of the periphery of the eccentrio dis of decreasing radius insurethe disk being turned until the flat portion 16 is again broughtopposite to the auxiliary shaft j The note es in the hubk are preferablyof different shape in cross-section, as shown in Figs. 3 and 4-, onebeing of flattened V shape.

while the other has one wall substantially re dial, and the tooth 10 hasits holding side in .a plane substantially radial of the hub. During'the reproducing graph the cam-disk is old against turnin by the tooth10, extending into the flattens V- shaped notch, and the tooth is thuseasily forced out of the notch. by the turning ofthe disk when thecam-plate Zc-omesinto engagement with the post 6 and the disk is thenfree to be turned until the otherg otch is brought into position toreceive the tooth 1G. When the tooth enters this other notch, the diskis locked by theengagernent of the radial faces of the tooth and notohnasrshownin Fig. 4:, and itisthus during the return movement of ther'eproducer-carrier and connected parts held securely against theturning strain due to the engagement of the rib 15 of the disk with therotating shaft 3' until the projectin end i of the latch-arm runs underthe inclinedarm g, and the latch is thereby moved to release the diskand permit it to make'its fur- ,therpartial rotatioh for returning thereproducer and feed-nut to operative position.

The adjustmentprovided fonthe post 6 and arm 9 is forthe purpose ofadapting the mechanism to records varying in length and position onthemandrel, so that the reproduoing devices'ma operate only over the lengthof the actua record.

ranged, and timed that the operations hereinbefore described areautomatically repeat-' edat the endof the -move1nents' in oppositedireotions'and withouteny action on the part of an operator .orattendant.

It will be understood that the term phoopera'tionof the phono- Theseveral partsare so constructed, ar-' nograph is used herein as a broadterm to include all sound-reproducing machines to which the invention isor may be found applicable;

"What I claim is- 1. The combination with the reproducercarrier of aphonograph, of a threaded" return feed-shaft, a lifting device movablewith the reproducer-oarrier, means for holding isltld device duringeither longitudinal movement, means at one end of the return f-u adaptedto turn saiddevice in one direction to lift the reproducesfrom therecord, and means at the other end 01'' the return feedshaft adapted tooperate the holding ean; 1 3e carrier of a phonograph, of athrea edreturn feed-shaft provided with a spiral groove and with teeth on thesurface between the convolutions of said groove, an abutment, arevoluble device movable with the reproducercarrier and adapted to beturned by said abutment to engage the return feed-shaft, parts connectedwith said revoluble device and adapted to progressively engage the teethand the groove of the return feed-shaft to lift the reproducer' from therecord and to return the reproducer-carrier by the rotation of thereturn feed-shaft to an initial position, means for holding therevoluble device against turning, and a device at the opposite,

end of the return feed-shaft from the abut ment for moving the holdingmeans to release said revoluble device to permit 'it to complete itsrotary movement for returning the reproducer to operative-position;

3. The combination' vvitl1thefreproducercarrier of a phonogra h, of athreadpd return feed-shaft, a revolu le device moifirted to move withthe reproducer-carrier, a hub with oppositely-located notches forming apart of said revoluble device, a latch adapted to enga e the notches ofsaid hub to hold the revoluble device in its respective positions, meansfor turning said revoluble device at the, end of the reproducingmovement of the reproducer-carrier to'lift the reproducer from therecord, and a device for moving said latch to release therevolubledevice to permit the parts to return to-operative osition at the end ofthe return movement 0 producer-carrier.

4. The combination with the reproducercarrier of a phonograph, of athreaded return feed-shaft, a support mounted to move with thereprcducencarrier, an eccentric disk pivotally mounted on said support,a latch-arm mounted on said support to coaet with the eccentric disk forholding the same during its respective movements, means for turning theeccentricdisk at theend of the reproducing movement of thereproducer-carrier to lift the reproducer from the record, and anadjustable arm for engaging the latch-arm to release the eccentric diskat the end of the return movement of the reproducer-carrier to permitthe disk to make a further turning movement for returning thereproduce'r to operative position.

5. The combination'with the reproducerthe recarrier of a phonograph, ofa threaded return feed-shaft, an e'ccentric'disk mounted to having arearward projection, a cam-plate on the face of the eccentric disk, anabutment repro uoing movement of the reproducerthe return feed-shaftwhereby the disk is turned to raise the re'producer from the recrearwardprojection of the latch-arm to move eccentric disk to permit theeccentric disk to make a further turning movement for returning thereproducer to operative position.

6. The combination with the reproducercarrier of a phono raph, of areturn feedsurface between the convolutions of the groove, an eccentricdisk mounted to move with the reproducer-carrier and to turn atsubstantially right angles to the line of the return feed-shaft andhaving two series of peripheral teeth 13 and 14 an an intermediate flatspace 16 at a low portion of its peripher and a rib 15 at the end qhtheseries of teeth 13 at a high portion of its peripher a hub sescined toturn with the eccentric isk havin opposite axial notches, a latch-arm iada te to engage the notches of the hubto hol the disk in either one oftwo positigns and having a rearward rejection 'i, means for turning thedisk at t pend of the reproducing movement of the feproducer-carner tobring its series of peripheral teeth 13 into engagement with the teethof the return feed-shaft whereby the disk is then turned to lift the reroducer from the record and to bring its ri 15 into engagement with thespiral groove of the shaft for imparting a return movement to the theprojection 11 to move the latch-arm t'at the end of the return movementof the reproducer-carrier for releasing the eccentric disk to permit itto be given a further rotation by ducer to operative position.

7. The combination with the rgproducercarrier of a phonograph, of athrea ed return feed-shaft, an eccentric disk movable with thereproducer-carrier, means for holding the eccentric disk againstturni'ng,'means for bringing said diskinto engagement with the returnfeed-shaft at the end of the reproducing movement of thereproducer-carner whereby the disk is then turned b en agement with thereturn feed-shaft to ift t e re r0- ducer from the record, and means forre easing the disk from the holding means at the end of the returnmovement of the reproduc er-carrier to permit said disk to be given afurther turning movement b the return feedshaft for returning the reprodiicer to operative position.

8. The combination with the reproducercarrier of a phonograph, of areturn feedshaft having a spiral groove and gear-teeth carrier to turnthe disk into engagement with the latch-arm so as to release the hub andfor en aging said cam-plate at the end of the I 0rd, and an adjustablearm for engaging the shaft having a spira groove and teeth on itsreproducer-carrier, and an arm 9 for engaging the return feed-shaft forreturning the reproi on the surface of the shaft between the con 7volutions of the groove, an eccentric disk mounted to move with thereproducer-car- 'rier and havingteeth on its periphery adapted to engagethe teeth of the return feedshar't andlhav'ing a part adapted to engagethe spiral'groove of the return feed-shaft for imparting. a returnmovement-to the reproducer-carrier, means for causing the eccen- 15 triodisk to he turned by engagement of its peripheral teeth with thegear-teeth of the return feedshaft at the end of the return movement ofthe reproducer-carrier to lift the reproducer from the record and tobring the groove-engaging part of the disk into engage- "ment' with thespiral groove of thashaft, means for holding the disk against turningduring the return movement, and means for releasing the disk from theholding means at the end of the return movement of the reprodimer-carrier to permit .thedisk to be given a further turning movementby the return feedshait for returning the reproducer to opera- 'tivcposition.

l 3. The combination with the re' reducer: carrier of aphonogra' h, ofa' three ed return feed-Shaina lifting evice movable with the Ireproducercarrierfor lifting the reproduce]? from the record andadapted. to engage the return feedshaft, a counterweighted latch-armalso movable with the reproducer-carrier and adapted to hold saidlifting device a ainst turning, and means for moving said atcharm forreleasing said lifting device.

with the feed-shaft,'the reproducer-arrn, its

sleeve and. the feed arm connected thereto for engaging the feed-shaft,of a return feedshaft provided with a spiral groove and with teeth onthe surface between the convolu-- tions of said groove, an abutment, arevoluble device movable with the reproducer-arm and adapted to beturned by said abutment to engage the return feed-shaft, parts connectedwith said revoluble device and adapted .to

progressively engage the teeth and the groove of thi -eturn feed-shaltto lift the reproducerarm and to return the same by the rotation of thefeedshaft to an initial position, means for holding the revoluble deviceagainst turning, and a device at the opposite end 01"" the returnfeed-shaft from theabutment for mov-' ing the holding means to releasethe revoluble device to permit it to complete its rotarymovement forreturning the parts to operative position.

11. In combination with the reproducercarrier of a phonograph; threadedreturn feed-shaft, a'fe'voluble member mounted to move With'thereproducer carrier and to turn at substantially ri ht angles to the lineof the return feedshaft and having part for engaging the thread of thereturn feed-shaft to impart return movement to the reproducer carrier,means for, moving said member into 10. in a phonograph, the combinationteed-shrine cam-d islr senses engagement With the return feed-shaft atthe end of the reproducing movement of the reproducer-oarrier wherebysaid member. is

then turned to lift thereproducer from the .carrier of a phonograph, ofa threaded return ,ieed shaft, arevoluble lifting device mounted to turnat substantially right angles to the line of the return feed-shaft,means-for causing said device to be given a partial rotation byengagement with the return feed-shaft for lifting the reproducer fromthe record, means for holding said device in the position to which ithas been turned, and means for releasing said. device from the holdingmeansto permit said device to be given a further rotation for returningthe reproducer to operative position. i

13. The combination with thereproducercarrier of a phonograph, of athreaded return feed-shaft, a revolublo member mounted to move with thereproducer-carrier and having an eccentric or cam periphery and having athread-engaging part at a high portion of its periphery, means forholding said member in position with a low portion of its peripherytoward the return feed-shaft during the reproducing movement of-thereproducer-carrier, means for causing said member to engage the returnfeed-shaft -atthe end ofthe reproducing movement of thereproducer-carrier whereby said member is given a partial rotation tolift the reproduce from the record and tmbring its thread-engaging partinto engagement with the thread of the return teed-shaft for imparting areturn movement turn movement of the reproducer-carrier, and means forreleasing said member from the holding means at the end of the returnmovement of the reproducer-carrier to permit said member to be given afurther turningmovement by the return feed-shaft for turning thereproducer to operative position.

let. The combii ion with the reproducercarrier of a phonograph, oi athreaded return mounted to move with r and to turn at substantially r ga to the line ofthe return feedlraft, sai having a ortion of itsperiphery of progressivel ,drier mg radius and having a part at a highportion fits periphery formed to coact with the thre 1 ef tare leprosyto the reproducer-carrier, means for holding said. member against turnmgduring the rethe return feed-shaft and having a portion ofprogressively-decreasing radius extending from said thread-coactingportion, means for holding said disk in position with a low portion ofits cam periphery toward the return feed-shaft during the reproducingmovement 'of the reproducer-carrier and for holding the disk againstrotation during the return movement of the reprodueer-oarrier, means forcausing the disk to engage the return feedshaft at the end of thereproducing movement of the reproducer-carrier whereby the disk is givena partial rotation to lift the reproducer from the record and to bringits thread-eoacting part into engagement with the thread of the returnfeed-shaft for imparting a return movement to the reproduoer-earrier,and means for releasing the disk from the holding means at the end ofthe return movement to permit the disk to be given a further rotation bythe return feed-shaft for returning the reproducer to operativeposition.

15. The combination with the reproducercarrier of a phonograph, of athreaded return feed-shaft having gear-teeth at and near one endthereof, a cam-disk mounted to move with the reprodueer-earrier and toturn at substantially right angles to the lines of the returnfeed-shaft, said disk having a portion of its periphery ofprogressively-increasing "radius provided with gear-teeth to coact withthe teeth of the return feed-shaft and having a part beyond the toothedportion formed to and having a portion of progressively-decrees ingpart, means for holding said disk in osition with a low portion of itscam perip iery toward the-retiirn eed-shaft during the reproducing moeinent of the reproducer-carrier and for holding the disk againstrotation during the return movement of the re reducer-carrier, means forcausing the disr to engage the return feed-shaft at the end of thereproducing movement of the reproducercarrier. whereby the disk is givena partial rotation to lift the reproducer from the record and to bringits thread-coacting part into engagement with the thread of the returnfeedshaft for imparting return movement to the reproducer-earrier, andmeans for releasing the disk from the holding means at the end of thereturn movement to ermit the disk to be given a further rotation by thereturn feed shaft for returning the reprodueer to operative position.

'coact with the thread of the return feed-shaft 35 I ing radiusextending from said thread-coacti 6. The combin ati on with thereproducer- .carrier of a phonograph, of a threaded return fced-shaft, amember mounted to move with the reproducer-earrier and to turn atsubstantially right angles to the line of the return feed-shaft andhaving a part for engaging the thread of the return feed-shaft to imparta return movement to carrier and t support the rep t repro cfilcerucerduring carrier of a phonogra h, of a threaded return feedshaft, acam-dis mounted to move with the reproducer-earrier and to turn atsubstantially right angles to the line of the return feed-shaft andhaving a part for engaging the thread of said shaft to impart a returnmovement to the reprodu'eer-carrier and to support the reproducer duringits return movement, means for turning said disk to liftthe reproducerfrom the record and to bring its thread-engagin part into engagementwith the thread of t e return feed-shaft,

at the end of the reproducing movement of the reproducer-carrier, meansfor holding said disk against turning during the return movement of therepro'ducer-oarrier, and means for releasing said disk from the holdingmeans at the end of the return movement of the reproducer-earrier topermit the disk to make a further turning movement to return thereproducer to operative position.

18. The combination with the reproducercarrier of a phonograph,'of athreaded return feed-shaft, a member mounted to move with thereproducer-carrier and to move inde pendently of its movement with thereproducercarrier in a direction at substantially right angles to theline of the return feedshaft and having a part for engaging the threadof said shaft to impart a return movement to the rcproducer-carrier andto support the reproducer during its return movement, means for movingsaid member to lift the reproducer from the record at the end of thereproducing movement of .the reproducercarrier and to bring itsthread-engagin part into engagement with the threadof the reher duringthe retnin movement of the reproduceecarrier, and means for releasingsaid member from the holding means at the end of the return movement ofducer-carrier to permit said member to make a further movement for thereturn of thereproducer to operative position.

19. The combination with the-reproducer carrier of a phonogra h, of athreaded return feed-shaft, a revolub e lifting device mounted to movewith the rproducer-carrier and to turn at substantially right anglestothe line of the return feed-shaftiand having an eccentric or cameriphery and having a m at a high portion of its cam ingthe threafl ofsaid shaft to impart a rethe repro eriphery for engage.

. device against' further turning movement is I eemet.

during the return movement of the reproducer-oerrier, and means forreleasing said device from the-holdin means to permit said device to begiven. a hirtherturning movement by the return feed-shaft to return thereproducer to operative position.

'20. The combination with the re reducer carrier of a phonogra h,- of athree ed return feed-shah}, errev'olub e lifting device mounted to movewith the reproducer-oarrier and to turn at substantially right angies tothe line of? the return feed-shaft and avin a part fer engaging thethreed of seid shait toian part it return movement to thereprodueerearner, means for turning seiddevice to br ng successiveportlons thereof into supporting engagement with the return feed-shaftto lift the reproducer from the record and to bring the threddengegjhgpart of said device into the thread of the return engagement witfeed-shaft, means for holding saiddevice against further vturningmovement during the return movement of the re reducer-carrier,

andmeans for releasing sai device from the holdingrneans to permit saiddevice to be given a further turning movement by the return feed-shaftto return the reprodueer to operative positiom.

Signed by 'me this 18th day of November,

.- Witnesses:

Geo. T. firzommv, S. T. HAVDZIAND.

WM. W. RQSENFIELD. g

